METREL MI 2893 - Page 97

MI 2893 / MI 2892 / MI 2885 Alarms table
97
Figure 71: Alarms list screen
Table 76: Instrument screen symbols and abbreviations
Date
Date when selected alarm has occurred
Start
Selected alarm start time (when first U
Rms
value cross threshold)
L
Indicate phase or phase-to-phase voltage where event has occurred:
1 – alarm on phase L
1
2 – alarm on phase L
2
3 – alarm on phase L
3
12 – alarm on line L
12
23 – alarm on line L
23
31 – alarm on line L
31
Slope
Indicates alarms transition:
 Rise – parameter has over-crossed threshold
 Fall – parameter has under-crossed threshold
Min/Max
Minimal or maximal parameter value during alarm occurrence
Duration
Alarm duration.
Table 77: Keys in Alarms table screens
Filters alarms according to the following parameters:
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
All alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Voltage alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Combined power alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Fundamental power alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Nonfundamental power alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Flicker alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Unbalance alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Harmonics alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Interharmonics alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Signalling alarms.
 UIF C. Pwr F. Pwr NF. Pwr
Flick Sym H iH Sig Temp
Temperature alarms.
Filters alarms according to phase on which they
occurred:
F2
F3